Heating-stove



(No Model.)

H. TILDEN.

HEATING STOVE. No. 359,696. Patented Mar. 22, 1887.-

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lhsrrn STATES HENRY TILDES, OF MINNEAPOLIS, MINNESOTA.

HEATING-STOVE.

SPECIFICATION forming part of Letters Patent No. 359,696, dated March22, 1887.

Application filed November 9, 1885. Serial No. 182,217.

(No model.)

To all whmn it may concern:

Be it known that l, HENRY TILDEN, a citizen of the United States,residing at Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in Heating-Stoves, of which the following is a specification.

My invention relates to stoves for heating purposes; and the object ofthe invention is the utilization, by simple and inexpensive means, ofthe larger portion of the heat which in stoves of ordinary constructionescapes unutilized through the smoke-fines. This object is accomplishedby the construction and arrangement of devices illustrated in theaccompanying drawings, in which- Figure 1 is an elevation of a stoveprovided with my improvements. Fig. 2 is a central vertical section ofthe same. Figs. 3 and 4 are plan views of the grates used in the frontand rear portions, respectively, of the stove for supportingfire-bricks; and Fig. 5 is a slide used for controlling the draft,.inconnection with the grate shown in Fig. 3.

The stove selected for illustration is a woodburning. stove of oval formin cross-section, and the parts hereinafter described are shaped withreference to that form; but it will be obvious that the improvements canbe adapted by change of form to use in connection with stoves of otherforms than that illustrated in the drawings. In the drawings, Arepresents the fire-box, and B the ordinary sheet-iron drum. 6 is theusual smoke-flue leading to the chimney, and connected with the drum Bnear its lower end and with the upper portion of the drum B by a branchpipe, I). The usual dampers, b, are provided in the pipes 12 and b.

An air-inlet, a, to the combustion-chamber is provided in the frontplate, and a door, a, is provided in the side of the combustionchamber.011 the top of the c0mbustion-chamher is fitted a grate, 0, adapted tosupport several tiers of fire-bricks.

d d are bricks of fire-clay or other suitable material piled verticallyin open courses alternately laid to form a devious passage for theproducts of combustion.

The bricks may be made-to conform somewhat to the shape of the stove, sothat they may be more conveniently laid, and they are preferably sospaced in laying them that the aggregate areas of the spaces on anygiven plane will about equal thesmoke-fiue air-space.

It is desirable to divide the drum by a partition, c, fitting to thesides of the drum, and extending from the grate G to about the lowerline of the pipe b. The bricks in the rear of this partition should besupported above the opening to the smokeflue b, and for this purposethere is provided a grate, f, which may be secured to the sides of thedrum and to the partition e.

The portion of the grate O in rear of the partition has draft-openingsh, over which is a sliding plate, 8, having corresponding openings h foropening orclosing the holes to control the draft. In starting a fire, orwhenever a direct and strong draft is desired, the slide may be shiftedby means of the handle 5-, which projects outside the stove, and theopenings h of the slide brought in coincidence with openings h ofthegrate. At othcr times, when it is desired to have the draft through thedrum B, these holes are kept closed. The passage of the heated productsof combustion in a zigzag course through the series of bricks retardsthe escape of those products and results in heating the bricks to a highdegree, and the heat thus stored is afterward given off by grad ualradiation.

In the upper portion of the drum B it is desirable to have openingscontrolled by slides i, so that when the bricks have become heated andwhen there may be no smoke or gas rising from the fire-box the slides 2'may be with drawn and the dampers b closed, thereby allowing the heatedair to pass out of the openings-in the drum.

Itis desirable also to form a secondary drum, B, at the top of the stoveby interposing 2 close-fitting plate, g, in the upper portion 0; thedrum B, and this drum B may be suppliec' with draft-openings controlledby slides i t: permit a circulation of air through the drum. The plate 1becomes very hot and heats 131M air as it circulates in the drum, andthenceil passes out to aid in warming the apartment.

WVhat I claim herein, and desire to secure by Letters Patent, is

1. The combination, in a heating-stove hav ing a fire-chamber, a drum,and an intermedi ate grate, of a partition dividing said drum except theupper portion thereof, into front I 2. In a heater, the combination ofthe fireand rear compartments, an escape-flue combox A, the drum B, theescape-fines b 1), promunicating with the lower portion of said rearvided with darnpersvb the grate O, the particompartment, a damper forcontrolling the tion 6, dividing said drum into compartments, I5 5 draftfrom the fire-chamber directly to said the draft-regulator s, the gratef, and the fire-- cscape-flue, a grate in said rear compartment bricks(Z, all constructed and arranged subimmediately above the inlet to saidescapestantially as set forth.

flue, and open courses of fire-bricks alternately HENRY TlLDEN. laid toform devious passages in said compart- \Vitnesses: Ic ments for theproducts of combustion, sub- R0131. O. KALDLUFF, 2

stantially as set forth. P. H. GUNcKEL.

